exam Maths Puzzle Numerical Ability

Geomatry. The area of a rectangle of length is x is given by 3x^2 + 5x. Find teh width of the rectangle.

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exam Other Question

One number is 18 more than another,and the sum of the smaller number and twice the larger number is 45. Find the two numbers and solve the equation.

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what is the y intercept of 5x-4y=20